Youre trying to determine whether to expand your business by building a new manufacturing plant. The plant has an installation cost of $12.4 million, which will be depreciated straight-line to zero over its four-year life. If the plant has projected net income of $1,894,300, $1,947,600, $1,916,000, and $1,369,500 over these four years, what is the projects average accounting return (AAR)?